Dark Slate Gray (#2F4F4F)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text

This is how text may look on this color.

Best text color: #FFFFFF
Contrast vs white: 8.93:1 — vs black: 2.35:1

Color values

HEX #2F4F4F
RGB rgb(47, 79, 79)
HSL hsl(180, 40%, 30%)
CMYK cmyk( 40.51, 0, 0, 69.02 )
Websafe #336666

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Tags

Mood

Calm (200) Luxury (200)

Style

Use case

Text (210) Logo (175) Print (170)

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #2F4F4F based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Dark Slate Gray
#2F4F4F Base

#4F2F2F

Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Dark Slate Gray
#2F4F4F Base

#2F4F3F

#2F3F4F

Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Dark Slate Gray
#2F4F4F Base

#4F2F4F

#4F4F2F

Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Dark Slate Gray
#2F4F4F Base

#4F2F3F

#4F3F2F

Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Dark Slate Gray
#2F4F4F Base

#3F2F4F

#4F2F2F

#3F4F2F

Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Dark Slate Gray
#2F4F4F Base

#0A1010

#121F1F

#203535

#3E6969

#4C7F7F

#6EA9A9

Shades & Tints

Darker shades and lighter tints of Dark Slate Gray, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

— #0A1010

— #111D1D

— #192929

— #203636

— #274242

Dark Slate Gray #2F4F4F Base

— #4A7C7C

— #68A5A5

— #95C0C0

— #C2DBDB

— #EFF5F5

CSS & SCSS Snippets

Ready-to-use code snippets for #2F4F4F. Click the copy button to copy any snippet to your clipboard.

/* Background */
.element {
    background-color: #2F4F4F;
}

/* Text */
.element {
    color: #2F4F4F;
}

/* Border */
.element {
    border: 1px solid #2F4F4F;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #2F4F4F,
        #6F2F2F
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #2F4F4F,
        #6F2F2F
    );
}

// SCSS variable
$dark-slate-gray: #2F4F4F;

// With RGB channels (useful for rgba() usage)
$dark-slate-gray-r: 47;
$dark-slate-gray-g: 79;
$dark-slate-gray-b: 79;

// Usage
.element {
    background-color: $dark-slate-gray;
    color: rgba($dark-slate-gray-r, $dark-slate-gray-g, $dark-slate-gray-b, 0.8);
}

Color Blindness Simulation

How Dark Slate Gray appears to people with different types of color vision deficiency.

Normal Vision #2F4F4F How the color appears with full color vision.

Deuteranopia #474750 Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.

Protanopia #4C4C4F Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.

Tritanopia #2F4F4F Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.

Achromatopsia #4A4A4A Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.

Similar Named Colors

The closest named colors to Dark Slate Gray ranked by perceptual difference (Delta-E 2000 — lower = more similar).

Dark Slate Gray #2F4F4F Base

Japanese Indigo #264348 ΔE 4.93

Midnight Green #004953 ΔE 6.39

Deep Jungle Green #004B49 ΔE 6.57

Warm Black #004242 ΔE 6.89

How to use this color

Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
Use CMYK when preparing print assets (posters, packaging, brochures).
Check contrast before using it for text or important UI elements.